xlsh - eXtended Login Shell
(c) 2011 Michał Siejak
A simple login shell with readline functionality and PAM integration.
* When run stand-alone on a virtual console it can replace standard "login" program.
* When run in cooperation with X daemon component (xlshd) it can replace XDM/GDM/KDM.
Full documentation can be found here:
* Small and simple, written entirely in C.
* Easily hackable because of compact codebase (~1000 source lines).
* Uses PAM for authorization and session management.
* Ability to select non-default shell/window manager during logon.
* Entirely keyboard driven display manager replacement (when used with xlshd)
without the need for any fat libraries or GUI toolkits.
* Defaults configured before compilation, some of them can be changed by
setting few environment variables.
* Single shell script file (/etc/xlsh/xlshrc) for customizing how
xlshd launches xlsh.
* Introduces a concept of "pre-login shell" known from GNU/HURD.
* Only *three* important commands: 'login', 'reboot' and 'shutdown'.
* New commands can be easily added (if you need any) by editing xlsh.c
* Username autocompletion on TAB.
* Zenburn color scheme by default (when run under X).
The only build dependencies are: make, a decent C compiler, libreadline and libpam.
Configuration options can be edited in include/config.h before compiling.
Runtime dependencies for xlshd are: standard X11 distribution with xterm and
(optionally) xdotool for enforcing terminal window focus on multi-monitor setups.
When using xlsh as "login" replacement remember to tell your getty program to not
ask for username. When using xlshd from inittab specify -f flag so it won't fork
Example lines from my inittab file:
# xlsh on virtual console #1 (tty1)
c1:2345:respawn:/sbin/agetty -8 -s 38400 -n -l /usr/local/sbin/xlsh tty1 linux
# xlshd starting X server and xterm/xlsh on runlevel 5
Thanks goes to Mateusz Hromada for testing and providing useful patches. ;-)
Please report any bugs or issues either via github or via mail to: